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Java Runtime Polymorphism Example: Bank

Consider a scenario where Bank is a class that provides a method to get the rate of interest. However, the rate of interest may differ according to banks. For example, SBI, ICICI, and AXIS banks are providing 8.4%, 7.3%, and 9.7% rate of interest.

Figure 4.15: Polymorphism example - bank
Image bankinheritance


\begin{lstlisting} class Bank{ float getRateOfInterest(){return 0;} } class ... ...tln(''AXIS Rate of Interest: ''+b.getRateOfInterest()); } } \end{lstlisting}

Output:


\begin{lstlisting} SBI Rate of Interest: 8.4 ICICI Rate of Interest: 7.3 AXIS Rate of Interest: 9.7 \end{lstlisting}